WHAT EVIDENCE WAS USED EARLY TO SUPPORT THE CONCEPT OF PLATE TECTONICS?

1. WHAT EVIDENCE WAS USED EARLY TO SUPPORT THE CONCEPT OF PLATE TECTONICS?

2. ALFRED LOTHAR WEGENER, 1880-1930

3. ALFRED LOTHAR WEGENER, 1880-1930 • Jig-saw puzzle fit of the continents

4. ALFRED LOTHAR WEGENER, 1880-1930 • Jig-saw puzzle fit of the continents • Fit of geologic materials between continents.

5. ALFRED LOTHAR WEGENER, 1880-1930 • Jig-saw puzzle fit of the continents • Fit of geologic materials between continents. • Global Distribution of plants and animals

6. 1. JIG-SAW PUZZLE FIT OF THE CONTINENTS Fit accomplished using continental shelves rather than present coastlines 02.05.a1

7. 1. JIG-SAW PUZZLE FIT OF THE CONTINENTS South America Fit accomplished using continental shelves rather than present coastlines 02.05.a1

8. 1. JIG-SAW PUZZLE FIT OF THE CONTINENTS Africa South America Fit accomplished using continental shelves rather than present coastlines 02.05.a1

9. 1. JIG-SAW PUZZLE FIT OF THE CONTINENTS Madagascar Africa South America Fit accomplished using continental shelves rather than present coastlines 02.05.a1

10. 1. JIG-SAW PUZZLE FIT OF THE CONTINENTS Madagascar Africa India South America Fit accomplished using continental shelves rather than present coastlines 02.05.a1

11. 1. JIG-SAW PUZZLE FIT OF THE CONTINENTS Madagascar Africa India South America Australia Fit accomplished using continental shelves rather than present coastlines 02.05.a1

12. 1. JIG-SAW PUZZLE FIT OF THE CONTINENTS Madagascar Africa India South America Antarctica Australia Fit accomplished using continental shelves rather than present coastlines 02.05.a1

13. 1. JIG-SAW PUZZLE FIT OF THE CONTINENTS Madagascar Africa India South America Antarctica Australia Small fragments of other continents Fit accomplished using continental shelves rather than present coastlines 02.05.a1

14. 2. GEOLOGIC SIMILARITIES BETWEEN CONTINENTS. Geologic features formed before the Atlantic Ocean (200 mya) should now be separated by thousands of miles of ocean. 11.10.b1

15. 2. GEOLOGIC SIMILARITIES BETWEEN CONTINENTS. Geologic features formed before the Atlantic Ocean (200 mya) should now be separated by thousands of miles of ocean. Rocks of the Appalachian Mountains “end” in Newfoundland, but appear to continue on through the British Isles and Scandinavia. 11.10.b1

16. 2. GEOLOGIC SIMILARITIES BETWEEN CONTINENTS. Geologic features formed before the Atlantic Ocean (200 mya) should now be separated by thousands of miles of ocean. Rocks of the Appalachian Mountains “end” in Newfoundland, but appear to continue on through the British Isles and Scandinavia. 400 my old rocks (brown) in South America and Africa fit together like the pattern on jig-saw puzzle pieces. 11.10.b1

19. Evidence of glaciation (typical patterns or erosion and deposition). Glaciers on land, not sea Flow patterns match up when reconstructed 250 million years ago Permian -Triassic

20. 3. FOSSIL PLANTS AND ANIMALS. Cynognathus South America and Africa Lystrosaurus Australia, Antarctica, India, Africa

21. 3. FOSSIL PLANTS AND ANIMALS.

22. PANGEA NOT THE ONLY OR ORIGINAL “SUPER-CONTINENT” Pangea Earth’s History Present Pangea Forsythe et al., 2009 Eos, 90(41), p. 361-362